21086902

素因数分解:

$2^1\times {\mathrm{17}}^1\times {\mathrm{277}}^1\times {\mathrm{2239}}^1$

素因数の和:2535

約数の個数: 16

約数和(自身を含む): 33626880

約数和(自身を除く): 12539978

約数列:

[1, 2, 17, 34, 277, 554, 2239, 4478, 4709, 9418, 38063, 76126, 620203, 1240406, 10543451, 21086902]

約数ペア:

[(1, 21086902), (2, 10543451), (17, 1240406), (34, 620203), (277, 76126), (554, 38063), (2239, 9418), (4478, 4709)]